CN105655857A - Installation system based on large-face pumping batten laser cylindrical lens - Google Patents

Installation system based on large-face pumping batten laser cylindrical lens Download PDF

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Publication number
CN105655857A
CN105655857A CN201610180223.XA CN201610180223A CN105655857A CN 105655857 A CN105655857 A CN 105655857A CN 201610180223 A CN201610180223 A CN 201610180223A CN 105655857 A CN105655857 A CN 105655857A
Authority
CN
China
Prior art keywords
installation
post lens
support frame
light
mounting bracket
Prior art date
Application number
CN201610180223.XA
Other languages
Chinese (zh)
Inventor
林蔚然
陈艳中
何建国
于佳琦
郭广妍
Original Assignee
中国科学院光电研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国科学院光电研究院 filed Critical 中国科学院光电研究院
Priority to CN201610180223.XA priority Critical patent/CN105655857A/en
Publication of CN105655857A publication Critical patent/CN105655857A/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0916Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
    • G02B27/0922Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers the semiconductor light source comprising an array of light emitters
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938Using specific optical elements
    • G02B27/095Refractive optical elements
    • G02B27/0955Lenses
    • G02B27/0966Cylindrical lenses
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09Processes or apparatus for excitation, e.g. pumping
    • H01S3/091Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/0941Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode

Abstract

The invention discloses an installation system based on a large-face pumping batten laser cylindrical lens. The installation system comprises an indication light source used for providing indication light, a narrow array arranged in the light emitting direction of the indication light and used for converting the indication light into a plurality of small linear light spots, a reflector used for changing a light path according to a preset angle and the cylindrical lens used for reflecting the light spots passing the reflector so that whether the cylindrical lens is assembled smoothly or not can be detected by detecting the position of the reflected light of the narrow array. In this way, a corresponding detection light path can be provided, and therefore the assembling precision is improved.

Description

A kind of installation system based on big face pumping slab laser device post lens
Technical field
The present invention relates to laser technology field, especially relate to the installation system of a kind of slab laser device pump face battle array slow axle shaping post lens based on the pumping of big face.
Background technology
Entering for 21st century, the development of laser technology is maked rapid progress. The solid statelaser of semi-conductor pumping is applied widely because of advantages such as heat effect is little, good stability, compact constructions. Entering people's eighties in 20th century, along with the development of semiconductor laser technique, the performance of single laser diode is greatly improved, especially the developing rapidly of semi-conductor array, makes solid statelaser present vitality.
For traditional pole shape laser working medium, pumping will produce high heat load in media as well, by the obvious thermograde of radial generation at working medium in process of cooling, thus bring the heat effect such as thermal lens, stress depolarization, output rating is caused to decline, beam quality reduces, and even brings damage to laser medium.
For solving the heat effect problem of traditional round rod-shaped laser working medium, laser medium mainly selects these three kinds, thin slice medium, optical fiber medium and lath medium. Thin slice medium is because of its thin feature, and heat radiation area is easy greatly, because this reducing the distortion problem that heat effect is brought; Optical fiber medium is because of the feature of its slim appearance, and dispel the heat length sufficiently long, thus increases heat radiation length, effectively reduces heat effect; Lath medium also can effectively reduce the impact that heat effect is brought.
In prior art, common lath medium be applied as LD pump bar laser medium, on the one hand, its thermograde in a thickness direction in one dimension distribution, this greatly reduces thermal lens and thermal birefringence effect; On the other hand, owing to laser is that "the" shape spination is advanced at thickness direction, compensate for thermal lensing effect and impact that thermal distoftion effect is brought, thus improve the beam quality of output rating and output beam.
It is that the laser amplifier of working medium mainly contains end face pumping, laser diode-side-pumped and big face pumping three types by pumping schemes classification taking lath. The advantage of big face pumping slab laser device is: pumping face light-receiving area is big, and pumping homogeneity is good, can export relatively high power, good beam quality. In order to guarantee the in uniform light in LD pumping face, it is to increase beam quality, it is necessary to pump light source is carried out shaping and evenization. The LD pump light source quick shaft direction angle of divergence is relatively big, and the mode of general employing waveguide carries out shaping and evenization, and the angle of divergence of slow-axis direction is less, is small field of view, adopts collimating optical system to carry out shaping.
The pumping source of big face pumping slab laser device is LD face battle array, namely by LD repeatedly battle array parallel arrangement forming surface battle array, can unify to carry out shaping to the slow axle of same repeatedly battle array, and different repeatedly battle arrays needs to use the post lens combination of parallel arrangement to carry out shaping. Generally post lens combination is arranged on same mechanical parts, adopts the mode of sealing to install, more overall and pumping face battle array installation. The mount scheme of prior art does not detect light path accordingly, and assembling precision is poor.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of installation system based on big face pumping slab laser device post lens, it may be possible to provide detects light path accordingly, thus improves assembling precision.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: providing a kind of installation system based on big face pumping slab laser device post lens, this installation system comprises:
Instruction light source, for providing instruction light;
Slit array, is arranged on the light direction of described instruction light source, for described instruction light is converted to multiple little size linear beam spot;
Speculum, for changing the path of described light according to predetermined angle;
Whether post lens, for reflecting the described hot spot after described speculum, with smooth by detecting the reflected light of described slit array and detect described post lens arrangement.
Wherein, the slit of described slit array mates mutually with described post lens.
Wherein, described predetermined angle is 90 degree.
Wherein, the size of described speculum is greater than the size of described post lens, and is provided with regulating mechanism on the mirror holder of described speculum, it is possible to regulate the direction of described speculum.
Wherein, described installation system also comprises bracing frame and support frame base, and support frame as described above is for supporting described cylindrical mirror, and support frame as described above base is for supporting support frame as described above.
Wherein, described installation system also comprises height translation stage, is arranged on support frame as described above and the junction of support frame as described above base, for adjusting the height of support frame as described above, to reach the object of the height adjusting described post lens.
Wherein, described installation system also comprises pitching regulating device, is arranged on the junction of described height translation stage and support frame as described above, for described post lens are carried out pitch regulation.
Wherein, described installation system also comprises installing mechanism, and described installing mechanism comprises mechanical manipulator, mounting bracket and mounting bracket base, and described mounting bracket supports described mechanical manipulator, erecting frame described in described mounting bracket foot support.
Wherein, the face that described mechanical manipulator contacts with described post lens is set to plane, and is provided with flexible materials, to avoid, described post lens is caused damage.
Wherein, described mounting bracket base arranges a horizontal moving stage, for regulating the relative position between mechanical manipulator and erecting frame.
The invention has the beneficial effects as follows: the situation being different from prior art, the present invention provides a kind of installation system based on big face pumping slab laser device post lens, and this installation system comprises instruction light source, slit array, speculum and post lens. Wherein, instruction light source is for providing instruction light, slit array is arranged on the light direction of instruction light, for instruction light being converted to multiple little size linear beam spot, speculum is used for changing the path of light according to predetermined angle, whether smooth post lens, for being reflected by the hot spot after speculum, carry out test column lens arrangement with the reflected light by detection slit array. Therefore, whether smooth in the present invention if can carry out test column lens by reflected light to slit array, it is provided that detects light path accordingly, thus improves assembling precision.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of installation system based on big face pumping slab laser device post lens that the embodiment of the present invention provides;
Fig. 2 is the structural representation of slit array;
Fig. 3 is the structural representation of speculum and mirror holder thereof;
Fig. 4 is the structural representation of bracing frame, support frame base, height translation stage and pitching regulating device;
Fig. 5 is the structural representation of mechanical manipulator.
Embodiment
Referring to Fig. 1, Fig. 1 is the structural representation of a kind of installation system based on big face pumping slab laser device post lens that the embodiment of the present invention provides. Installation system 10 comprises instruction light source 11, slit array 12, speculum 13 and post lens 14.
Wherein, indicate light source 11 for providing instruction light. Slit array 12 is arranged on the light direction of instruction light, for instruction light is converted to multiple little size linear beam spot. Speculum 13 for changing the path of those little size linear light according to predetermined angle. Whether smooth post lens 14, for being reflected by the hot spot after speculum 13, carry out test column lens arrangement with the reflected light by detection slit array 12. Wherein, if the installation of post lens 14 is very smooth, then flare returns according to original optical path, namely still reflects in slit array 12. If hot spot can not return according to former road, then can immediately adjust, decrease the time carrying out integrated testability and integrated regulation after installing again, add yield rate, reduce the probability of damage of element. It is noted that this process can in the rubber seal process of post lens 14 Real-Time Monitoring.
Therefore, the present embodiment can provide and detect light path accordingly, thus improves assembling precision.
In the present embodiment, instruction light source 11 is preferably He-Ne (helium neon) light source. In other embodiments, it is possible to think other visible light sources, such as green glow.
Seeing also Fig. 2, Fig. 2 is the structural representation of slit array 12. Slit array 12 mates mutually with post lens 14. Namely the size of slit array 12 is corresponding with post lens 14 size, and specifically, the center of each slit overlaps respectively with corresponding post lens centre. Wherein, the post lens 14 that slit array 12 uses according to reality design, it is ensured that the position of each slit overlaps with the central position of post lens. In the present embodiment, post lens 14 comprise post lens and the single post lens that array is formed. The quantity of its center pillar lens 14 is corresponding with the quantity of the slit of slit array 12.
In other embodiments, it is also possible to only arrange single slit, single post lens regulate according to above method successively, are guaranteeing that single post lens are installed on the basis of planeness, then the pinpoint accuracy realizing slow-axis direction cylindrical lens array by changing slit array is installed.
Wherein, the width of single slit is preferably less than 1 millimeter, and the length of single slit is greater than the length of post lens 14.
Wherein, slit array 12 is replaceable, can single-column lens or cylindrical lens array be regulated, and can change with pumping face battle array and change.
The predetermined angle of the present embodiment is 90 degree, by the direction change 90 degree of hot spot. If the instruction light that instruction light source 11 provides is horizontal direction, then accommodation reflex mirror 13 is 45 degree of directions, and after array slit 12, hot spot is changed into vertical direction by speculum 13.
In tool structure, in order to meet the demand that all post lens carry out measuring simultaneously, the size of speculum 13 is greater than the size of post lens 14, usually designs bigger, it is preferable that be greater than 100 millimeters.
In addition, in order to guarantee that light path returns according to former road, overall light path needs the levelness and the verticality that keep height, is therefore provided with regulating mechanism 132 on the mirror holder 131 of speculum 13, it is possible to speculum 13 is carried out two-dimensional adjustment, it is ensured that the collimation of light path. Refer to Fig. 3.
Seeing also Fig. 4, the installation system 10 of the present embodiment also comprises bracing frame 15 and support frame base 16. Wherein, bracing frame 15 is for pillar stiffener lens 14, and support frame base 16 is for supported frame 15.
Further, the installation system 10 of the present embodiment also comprises height translation stage 17, and height translation stage 17 is a dimension translation stage, is arranged on bracing frame 15 and the junction of support frame base 16, for adjusting the height of bracing frame 15, to reach the object of adjustment column lens 14. Specifically, support frame base 16 also comprises supplemental support assembly 161, wherein, supplemental support assembly 161 is vertically arranged on support frame base 16, height translation stage 17 is arranged between bracing frame 15 and supplemental support assembly 161, carry out upper and lower translation by the setting direction along supplemental support assembly 161, reach the object of the height of adjusting support frame 15.
Further, installation system 10 also comprises pitching regulating device 18, is arranged on the junction of height translation stage 17 and bracing frame 15, carries out two-dimensional adjustment for coupled columns lens 14, and the mounting plane that can reach coupled columns lens 14 carries out the object of pitch regulation.
Referring again to Fig. 1, installation system 10 goes back installing mechanism 19, and installing mechanism 19 comprises mechanical manipulator 191, mounting bracket 192 and mounting bracket base 193, and mounting bracket 192 supported mechanical hand 191, mounting bracket base 193 supports mounting bracket 192. Further, mounting bracket base 193 arranges a horizontal moving stage 194, for regulating the relative position between mechanical manipulator 191 and mounting seat 193.
Referring to Fig. 5, the face 195 that mechanical manipulator 191 contacts with post lens 14 is set to plane, and is provided with flexible materials, to avoid, described post lens is caused damage. In addition, one end of mechanical manipulator 191 is also provided with spring 196, adopts spring structure so that the size of mechanical manipulator 191 can regulate according to mounted post lens sizes.
Wherein, it is also possible at the junction design pitching adjusting mechanism of mechanical manipulator 191 with mounting bracket 192, so that mechanical manipulator is carried out pitch regulation, the pitching adjusting mechanism 18 of concrete structure and front literary composition similar, does not repeat them here.
The foregoing is only embodiments of the invention; not thereby the patent scope of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all it is included in the scope of patent protection of the present invention with reason.

Claims (10)

1. the installation system based on big face pumping slab laser device post lens, it is characterised in that, described installation system comprises:
Instruction light source, for providing instruction light;
Slit array, is arranged on the light direction of described instruction light source, for described instruction light is converted to multiple little size linear beam spot;
Speculum, for changing the path of described light according to predetermined angle;
Whether smooth post lens, for being reflected by the described hot spot after described speculum, detect described post lens arrangement with the position of the reflected light by detecting described slit array.
2. installation system according to claim 1, it is characterised in that, described slit array mates mutually with described post lens.
3. installation system according to claim 1, it is characterised in that, described predetermined angle is 90 degree.
4. installation system according to claim 1, it is characterised in that, the size of described speculum is greater than the size of described post lens, and is provided with regulating mechanism on the mirror holder of described speculum, it is possible to regulate the direction of described speculum.
5. installation system according to claim 1, it is characterised in that, described installation system also comprises bracing frame and support frame base, and support frame as described above is for supporting described post lens, and support frame as described above base is for supporting support frame as described above.
6. installation system according to claim 5, it is characterized in that, described installation system also comprises height translation stage, is arranged on support frame as described above and the junction of support frame as described above base, for adjusting the height of support frame as described above, to adjust the height of described post lens.
7. installation system according to claim 6, it is characterised in that, described installation system also comprises pitching regulating device, is arranged on the junction of described height translation stage and support frame as described above, for described post lens are carried out pitch regulation.
8. installation system according to claim 4, it is characterized in that, described installation system also comprises installing mechanism, and described installing mechanism comprises mechanical manipulator, mounting bracket and mounting bracket base, described mounting bracket supports described mechanical manipulator, mounting bracket described in described mounting bracket foot support.
9. installation system according to claim 8, it is characterised in that, the one side that described mechanical manipulator contacts with described post lens is set to plane, and is provided with flexible materials, to avoid, described post lens is caused damage.
10. installation system according to claim 8, it is characterised in that, described mounting bracket base arranges a horizontal moving stage, for regulating the relative position between mechanical manipulator and mounting bracket.
CN201610180223.XA 2016-03-27 2016-03-27 Installation system based on large-face pumping batten laser cylindrical lens CN105655857A (en)

Priority Applications (1)

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CN201610180223.XA CN105655857A (en) 2016-03-27 2016-03-27 Installation system based on large-face pumping batten laser cylindrical lens

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Application Number Priority Date Filing Date Title
CN201610180223.XA CN105655857A (en) 2016-03-27 2016-03-27 Installation system based on large-face pumping batten laser cylindrical lens

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1388891A (en) * 2000-07-12 2003-01-01 瑞尼斯豪公司 Aligning optical components of an optical measuring system
JP2009002673A (en) * 2007-06-19 2009-01-08 Olympus Corp Alignment device for interferometer
CN101718534A (en) * 2009-12-22 2010-06-02 中国科学院长春光学精密机械与物理研究所 Parallelism detector for optical axis of multi-optical system
CN102975016A (en) * 2012-11-16 2013-03-20 深圳雷柏科技股份有限公司 Servo clamping mechanism and mouse assembling system with robot
CN104865708A (en) * 2013-11-05 2015-08-26 视乐有限公司 Method And Device For Alignment Of An Optical Imaging System
CN104930971A (en) * 2015-06-12 2015-09-23 浙江大学 Partial compensation lens and detected surface alignment device and alignment method in non-null detection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1388891A (en) * 2000-07-12 2003-01-01 瑞尼斯豪公司 Aligning optical components of an optical measuring system
JP2009002673A (en) * 2007-06-19 2009-01-08 Olympus Corp Alignment device for interferometer
CN101718534A (en) * 2009-12-22 2010-06-02 中国科学院长春光学精密机械与物理研究所 Parallelism detector for optical axis of multi-optical system
CN102975016A (en) * 2012-11-16 2013-03-20 深圳雷柏科技股份有限公司 Servo clamping mechanism and mouse assembling system with robot
CN104865708A (en) * 2013-11-05 2015-08-26 视乐有限公司 Method And Device For Alignment Of An Optical Imaging System
CN104930971A (en) * 2015-06-12 2015-09-23 浙江大学 Partial compensation lens and detected surface alignment device and alignment method in non-null detection

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Application publication date: 20160608